In 1929 Moholy-Nagy traveled to Marseilles, where he photographed the Pont Transbordeur, a steel transporter bridge that was celebrated, like the Eiffel Tower, as an icon
of modern construction. Like a number of other avant-garde photographers, including Germaine Krull, Herbert Bayer,
and Florence Henri, Moholy-Nagy was fascinated by the dynamic spatial relations of the bridge's crisscrossing steel girders and open spiral staircase. In this photograph, he used the technique of reverse printing to create a bold graphic composition that simultaneously clarifies and transforms the structure of the bridge.